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An enzymatic abnormality of the urea cycle is a metabolic disorder occasionally seen in adults, but particularly in the puerperium. The main risk is acute hyperammoniemic encephalopathy, leading to psychosis, coma and even death if not diagnosed promptly and treated appropriately. Headache is
Urea cycle disorders (UCDs) are inborn errors of metabolism in which the clinical picture is mostly due to ammonia intoxication. UCD onset may be observed at any age. Acute decompensations of UCDs include neuro-psychiatric symptoms such as headache, confusion, convulsions, ataxia, agitation or
Intravascular spill of hypertonic sodium chloride and the resultant serious and occasionally fatal consquences have been reported in association with induced midtrimester abortion. This report details 3 cases of intravascular spill of hyperosmolar urea. Although urea may pose less concern, because
N-acetylglutamate synthase deficiency (NAGSD) is an extremely rare urea cycle disorder (UCD) with few adult cases so far described. Diagnosis of late-onset presentations is difficult and delayed treatment may increase the risk of severe hyperammonemia. We describe a 52-year-old woman with recurrent
Urea cycle deficient patients with prominent hyperammonemic often exhibit abnormal production of nitric oxide (NO), which reduces vascular tone, along with amino acid abnormalities. However, information related to the metabolic changes in heterozygotes of ornithine transcarbamylase deficiency (OTCD)
H. pylori infection has recently been associated with various vascular disorders. The aim of this study was to investigate its role in primary headache, a pathology strictly associated with vascular alterations. A total of 200 subjects affected by primary headache were evaluated. H. pylori infection
In some inherited metabolic diseases, in particular in urea cycle disorders, which are usually diagnosed in neonatal period or in childhood, vomiting is often the first symptom. We report a case of late revelation of urea cycle disorder in a 13 years old female patient hospitalized for convulsions
OBJECTIVE
To investigate the incidences of urea cycle defects (UCDs) in the patients with hyperammonemia and study their etiology, clinical and laboratory features.
METHODS
In the past 7 years, 26 cases (10.2%) of UCDs were detected from 254 patients with hyperammonemia. The etiological diagnoses
BACKGROUND
Phenylacetic acid (PAA) is the active moiety in sodium phenylbutyrate (NaPBA) and glycerol phenylbutyrate (GPB, HPN-100). Both are approved for treatment of urea cycle disorders (UCDs) - rare genetic disorders characterized by hyperammonemia. PAA is conjugated with glutamine in the liver
According to Pearson's method (correlation coefficient) the group of improved patients is 16.88% of the expected total result (frequency of attacks regressed to 50%, 25% or 0%): for cyproheptadine, pizotifene, methysergide, methergoline, histamine, clonidine, allylpropylmalonyl urea 'p' is less than
Auditory dehydration testing with oral hyperosmolar substances is commonly used in the evaluation of patients with suspected endolymphatic hydrops. Endolymphatic hydrops is assumed to be temporarily reduced in some cases, resulting in an improvement in hearing. Unfortunately, ingestion of glycerol,
BACKGROUND
High-altitude headache (HAH) is the most common sickness occurred in healthy people after rapid ascending to high altitude, and its risk factors were still not well understood. To investigate physiological, hematological and biochemical risk factors associated with high-altitude headache
BACKGROUND
The prevalence of Helicobacter pylori is thought to be about 40% in developed countries. However, rates are difficult to determine due to many cases being asymptomatic.
OBJECTIVE
We present a case study in which eradication of H. pylori infection in a child, aged 7 years, was followed
Nitric oxide (NO) levels in plasma and urine were determined in 5 girls with ornithine transcarbamylase deficiency (OTCD) of late-onset type, who often developed migraine-like headache or vomiting. The patients were found to have low NO synthesis, suggesting that the low NO synthesis contributes to
OBJECTIVE
The aim of this study was to evaluate the prevalence, demographic, clinical features, and possible risk factors for hemodialysis headache (HDH).
BACKGROUND
HDH has been recognized for many years, but the pathophysiology of this condition is not known. High arterial blood pressure,